chaplin



(No Model.)

0. R. CHAPLIN. Device for Cutting Shoe Nails.

No. 238,571. Patented March 8,1881.

UNTTEE STATES PATENT OEETQE.

ORRIL R. CHAPLIN, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE FLEX- IBLE SHOE FASTENING MACHINE COMPANY.

DEVICE FOR CUTTING SHOE-NAILS.

SPECIFICATION forming part of Letters Patent No. 238,571, dated March 8, 1881. Application filed December 1, 1880. (No model.)

To all whom it may concern:

Be it known that I, mm. R. CHAPLIN, of Boston, in the county ot' Sutiolk and State of Massachusetts, have invented an Improved Device for Cutting Shoe-Nails, ot' which the following is a full, clear, concise, and exact description,referenee being had to the accompanying' drawings, making a part hereof, in which- Figure 1 is a front view of the lower part of a nailing-machine, showing the attachment ot' my improved cutters. Fig. 2 is a side view of the same. Fig. 3 is a plan of my cutters with the carrier and connections. Fig. 4 is a sect-ion on line g/ y ot' Fig. 6. Fig. 5 is a section on line :c 0c of Fig. 1. Figs. 6, 7, and 8 are details of the under cutters. Fig. 9 is a diagram for illustration. Fig. 10 is a detail, show ing the upper cutter. Fig. 11 shows the form 2o of the nail.

My invention relates to mechanism for forming shoe-nails from wire or wire-like material by cutting' off a section of the wire long enough for the nail-driver, and cutting away portions of this section to give the nail the desired form.

The mechanism shown in the drawings is adapted for application to a nail-driving machine, and to make shoe-nails of the form shown 3o in Fig. 1l of the drawings, which is fully described in an application for a patent led by me and now pending'.

The parts not lettered will be understood by all skilled in the art without description, as

they show portions of the head, slice-feed, edge-guide, and other parts ot' a well-known form of nail-driving machine, described in my Patent No. 231,149, dated August 1T, 1880.

The upper cutter, A, (shown in detail in Fig.

4o 10,) has two holes, a a, through it, the hole a receiving the wire from the wire-feedin g mechanism, and the hole a receiving the driver.

This is not new, and is fully described in my patent above referred to.

One ot' the under cutters, B, (shown in detail in Fig. 8,) has a groove, l), formed in one face, which is of the size and shape of the wire, except where the wire is to be eut away, and the other under cutter, D, has a groove, d, 5o formed in it, the counterpart of groove b,

these two grooves when brought together forming a receptacle for the wire. The upper surface ofthe cutter B forms, with the lower surface of the cutter A, a pair ot shears for severing the wire, it being understood that when the wire is fed into the device the groove b is in line with the hole c of cutter A, so that a portion ot' the wire of the desired length projects through hole a into the receptacle formed by the grooves b and d, which are together 6o when the wire is fed. When in this position, with a portion of the wire protruding through hole a into the chamber b d, a movement ofthe cutter B to carry groove b toward groove d ot' cutter D will sever that portion ot' the wire in 65 chamber b d from that portion in hole a, and will also cut away from the severed portion so much ot' the wire as is in groove d, leaving the severed portion in groove d and carrying the remainder (which is then the shoe-nail shown 7o in Fig. 11) into the chamber formed by the grooves b and d, which together make a groove ot' the shape ot' the wire section before a portion of it was eut away by the edge ot' groove d. The driver then descends, forcing the inished nail from the chamber forward ot' the grooves b and d. The cutter Ais then moved back to bring' groove b in to proper relation with groove d, the wire fed forward again, so that a portion ot' it will protrude into the chamber 8o formed by the grooves b d, and the operation repeated, a nail heilig formed by simply feeding the wire through the uppercutter and into the chamber formed bythe groove b d, and then moving the cutter .B so as to force the wire against the cutting-edge ot' the groove d, and thereby cut away a portion of 1t. The portion ent away and let't in groove d passes through a hole directly under that groove. (See Figs. 5 and 6.) 9o

Other forms of nails than that shown may be formed by my device, the main novelty ot' which resides in the chamber formed by the two grooves b d, which, when together, form a chamber to receive the wire, and which also act as cutters to cut away so much ofthe short section of wire as is required to be cut away to give the desired form to the nail.

In practice the groove d is best made wider at one end than at the other, as shown in the roo drawings, (see particularly Fig. 9, which is a diagram for illustrating this,) so as to give a shearing-cut to the cutting-edge d2 ot' the groove d. If the groove d were the exact counterpart of groove b more power would be required to cut away portions of the wire section than if the cutting-edge acts successively upon different parts of the wire.

I prefer to clamp cutter B in its carrier B', as shown in Fig. 3, and to hold cutter D be tween the two abutments d3 d, as shown in Figs. 5 and 6. This is for ease of adjustment, and also because the cutters A, B, and D require to be changed for each size of wire.

The means shown for moving cutter B are the same as are described in my Patent No. 231,149, above referred to, as is also the casing F.

That I claim as my invention is 1. In combination, the cutting devices B and D, formed or provided with the grooves b and d, adapted to receive the wire blank and to cut zo away a portion from the side ot' the wire blank, as described.

2. In combination, the cutting devices A, B, and D, the irst formed with the holes a and a for the wire and driver, respectively, the second z 5 formed with the groove Z), and the third with the grooves d and d', all arranged and operating substantially as described.

ORRIL R. GHAPLIN.

Witnesses D. G. KNoWL'roN, J. E. MAYNADIER. 

